header{
    background-color: #f4483e;
}

main{
    p{
        text-align: center;
        color: #999;
        font-size: 1.6rem;
        line-height: 3;
    }
    ul{
        li{
            a{
                img{
                    width: 13rem;
                    float: left;
                    margin: 1rem;
                }
                h1{
                    font-size: 2rem;
                    // width: 30rem;
                }
                h2{
                    font-size: 2.5rem;
                    line-height: 2;
                    color: #EE7700;
                }
                h3{
                    color: yellowgreen;
                    font-size: 1.5rem;
                    margin: 0 0 1.5rem 16rem;

                }
            }
        }
    }
}
div.mask{
    height: 0;
    overflow: hidden;
    width: 100vw;
    top: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.4);
    position: fixed;
    button{
        width: 9rem;
        height: 15rem;
        color: #fff;
        font-size: 5rem;
        line-height: 10rem;
        border: 0;
        background: rgba(0, 0, 0, 0.6);
        position: relative;

        &:nth-of-type(1){
        left: 1rem;
        top: 38rem;
        }
        &:nth-of-type(2){
        left: 40rem;
        top: -2.7rem;
        }
    }
    div.img{
        img{
            position: relative;
            left: 0;
            top: 20rem;
            margin: auto;
        }
        span{
            display: block;
            text-align: center;
            width: 6rem;
            font-size: 3rem;
            line-height: 4rem;
            color: #fff;
            background: rgba(0, 0, 0, 0.4);
            position: relative;
            left: 32.4rem;
            top: -1.3rem;
        }
    }
}